FKIE_CVE-2021-26076

Vulnerability from fkie_nvd - Published: 2021-04-15 00:15 - Updated: 2026-06-17 03:42
Severity
3.7 (Low) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Summary
The jira.editor.user.mode cookie set by the Jira Editor Plugin in Jira Server and Data Center before version 8.5.12, from version 8.6.0 before version 8.13.4, and from version 8.14.0 before version 8.15.0 allows remote anonymous attackers who can perform an attacker in the middle attack to learn which mode a user is editing in due to the cookie not being set with a secure attribute if Jira was configured to use https.
References
security@atlassian.comhttps://jira.atlassian.com/browse/JRASERVER-72252Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://jira.atlassian.com/browse/JRASERVER-72252Patch, Vendor Advisory
Impacted products
Vendor Product Version
atlassian data_center *
atlassian jira *
atlassian jira_data_center *
atlassian jira_data_center *
atlassian jira_server *
atlassian jira_server *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Jira Server",
          "vendor": "Atlassian",
          "versions": [
            {
              "lessThan": "8.5.12",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            },
            {
              "lessThan": "unspecified",
              "status": "affected",
              "version": "8.6.0",
              "versionType": "custom"
            },
            {
              "lessThan": "8.13.4",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            },
            {
              "lessThan": "unspecified",
              "status": "affected",
              "version": "8.14.0",
              "versionType": "custom"
            },
            {
              "lessThan": "8.15.0",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "Jira Data Center",
          "vendor": "Atlassian",
          "versions": [
            {
              "lessThan": "8.5.12",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            },
            {
              "lessThan": "unspecified",
              "status": "affected",
              "version": "8.6.0",
              "versionType": "custom"
            },
            {
              "lessThan": "8.13.4",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            },
            {
              "lessThan": "unspecified",
              "status": "affected",
              "version": "8.14.0",
              "versionType": "custom"
            },
            {
              "lessThan": "8.15.0",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "security@atlassian.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:atlassian:data_center:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "09C2E603-3885-467B-8720-DF14A23075C4",
              "versionEndExcluding": "8.5.12",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:atlassian:jira:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "AD4EEB38-868D-4E69-80A7-899BD9323B3A",
              "versionEndExcluding": "8.5.12",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:atlassian:jira_data_center:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "46468A73-9066-4ADA-BF9A-0DDF3EE9F69E",
              "versionEndExcluding": "8.13.4",
              "versionStartIncluding": "8.6.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:atlassian:jira_data_center:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "9F4C4682-A56A-4BEA-AFD7-6F116FCE8EF9",
              "versionEndExcluding": "8.15.1",
              "versionStartIncluding": "8.14.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:atlassian:jira_server:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "8BE06262-0589-4549-A3F2-6AA02A2E346D",
              "versionEndExcluding": "8.13.4",
              "versionStartIncluding": "8.6.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:atlassian:jira_server:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "3C31DC16-F8E3-4261-B539-C251E4BBC584",
              "versionEndExcluding": "8.15.1",
              "versionStartIncluding": "8.14.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The jira.editor.user.mode cookie set by the Jira Editor Plugin in Jira Server and Data Center before version 8.5.12, from version 8.6.0 before version 8.13.4, and from version 8.14.0 before version 8.15.0 allows remote anonymous attackers who can perform an attacker in the middle attack to learn which mode a user is editing in due to the cookie not being set with a secure attribute if Jira was configured to use https."
    },
    {
      "lang": "es",
      "value": "La cookie jira.editor.user.mode ajustada por Jira Editor Plugin en Jira Server y Data Center versiones anteriores a 8.5.12, desde versi\u00f3n 8.6.0 versiones anteriores a 8.13.4 y desde versi\u00f3n 8.14.0 versiones anteriores a 8.15.0, permite a atacantes an\u00f3nimos remotos poder llevar a cabo un ataque de tipo  attacker in the middle  para saber en qu\u00e9 modo est\u00e1 editando un usuario debido a que la cookie no est\u00e1 ajustada con un atributo seguro si Jira estaba configurado para usar https"
    }
  ],
  "id": "CVE-2021-26076",
  "lastModified": "2026-06-17T03:42:48.583",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 3.7,
          "baseSeverity": "LOW",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 1.4,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2021-26076",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-10-17T14:12:15.793730Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2021-04-15T00:15:12.983",
  "references": [
    {
      "source": "security@atlassian.com",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://jira.atlassian.com/browse/JRASERVER-72252"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://jira.atlassian.com/browse/JRASERVER-72252"
    }
  ],
  "sourceIdentifier": "security@atlassian.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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